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MIC2126YML Datasheet(PDF) 4 Page - Microchip Technology |
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MIC2126YML Datasheet(HTML) 4 Page - Microchip Technology |
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4 / 34 page  MIC2125/6 DS20005459B-page 4 2015 Microchip Technology Inc. TABLE 1-1: ELECTRICAL CHARACTERISTICS Electrical Characteristics: VIN = 12V, VOUT = 1.2V, VBST – VSW = 5V; TA = 25°C, unless noted. Bold values indicate –40°C ≤ TJ ≤ +125°C. (Note 1). Parameters Min. Typ. Max. Units Conditions Power Supply Input Input Voltage Range (VIN) (Note 2) 4.5 — 5.5 VVDD = VIN 4.5 — 28 — Quiescent Supply Current (MIC2125) —340 750 µA VFB = 1.5V Quiescent Supply Current (MIC2126) —1.1 3 mA VFB = 1.5V Shutdown Supply Current — 0.1 5 µA SW unconnected, VEN = 0V VDD Supply VDD Output Voltage 4.8 5.2 5.4 VVIN = 7V to 28V, IDD = 10 mA VDD UVLO Threshold 3.7 4.2 4.5 VDD rising VDD UVLO Hysteresis — 400 — mV — Load Regulation 0.6 2 3.6 % IDD = 0 to 40 mA Reference Feedback Reference Voltage 0.597 0.6 0.603 V TJ = 25°C (±0.5%) 0.594 0.6 0.606 –40°C ≤ TJ ≤ +125°C (±1%) FB Bias Current — 0.01 0.5 µA VFB = 0.6V Enable Control EN Logic Level High 1.6 —— V — EN Logic Level Low — — 0.6 — EN Hysteresis — 120 — mV — EN Bias Current — 6 30 µA VEN = 12V Oscillator Switching Frequency — 750 — kHz VFREQ = VIN —375 — VFREQ = 50% x VIN Maximum Duty Cycle — 85 — % — Minimum Duty Cycle — 0 — VFB > 0.6V Minimum On-Time — 100 — ns — Minimum Off-Time 150 220 300 — Soft-Start Soft-Start Time — 7 — ms — Short-Circuit Protection and OVP Current-Limit Comparator Offset –15 –4 7 mV VFB = 0.6V Current-Limit Source Current 32 36 40 µA VFB = 0.6V Note 1: Specification for packaged product only. 2: The application is fully functional at low VDD (supply of the control section) if the external MOSFETs have low voltage VTH. |
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